From: GBurch1@aol.com
Date: Sun Jun 06 1999 - 11:31:28 MDT
In a message dated 99-06-06 01:27:18 EDT, jamesr@best.com (James Rogers)
wrote:
> While safe in a structural sense, I am not so sure such a vehicle would be
> very safe for a human passenger. When two vehicles collide, the difference
> in relative momentum has an enormous impact on the injury suffered. While
> a lightweight vehicle may offer similar structural impact resistance to a
> steel framed vehicle, the protective value to a human is considerably
> different.
>
> As purely anecdotal evidence, I have been hit many times while in a variety
> of different vehicles. In one case I was hit by a Honda Accord while
> driving a '79 Toyota Corolla (a dinky tin death trap). Needless to say,
> the impact was quite bone-jarring and it shoved the car pretty hard, but I
> walked away the worse for wear. I have also been slammed by a similar
> Honda Accord while stationary in a Ford Bronco. It totalled the Honda and
> I was mildly annoyed when the Bronco shuddered under the impact, but
> otherwise barely noticed I'd been hit. I've been hit a number of times by
> a lot of other vehicles (and once or twice, I did the hitting), but I chose
> these two because the circumstances were very similar but in wildly
> different vehicles. I can say with great certainty that structural mass
> makes a big difference where vehicle-vehicle collisions are concerned. For
> this reason alone, I drive heavy, steel-framed vehicles. Considering the
> relatively high odds of dying due to traffic fatalities, I view big, heavy
> vehicles as an insurance policy. (On the other hand, I am increasing the
> odds that the other person involved in a collision with me will be mortally
> injured.)
As a notorious sports car fanatic, I had to grit my teeth at this. Of course
the physics of your post is unassailable, but I find my little fiberglass
hotrod increasingly threatened by massive steel SUV behemoths. I sense an
arms race of mass going on around me on the freeway. Building light,
high-performance (in many senses of the term) cars is more challenging than
just welding on more steel, but there are certainly ways to make very light
cars very safe: As just a couple of examples, crush zones and air bags are
huge advances over the death traps of my youth. (I sat in a beautifully
restored 1962 Thunderbird recently and felt threatened by the dashboard while
the car was sitting still!)
Thinking up new, higher-tech auto safety systems is a drive-time hobby of
mine. I've imagined compressed-gas (or even explosive) reactive crush zones,
automatic fire-fighting systems and a whole panoply of intelligent
driver-augmentation IT systems, from collision avoidance laser radar warning
systems to intelligent emergency management "assistants" that take over more
or less control of the car in fast-breaking situations. Of course, as fast
as I think of these things, I read about them as just-over-the-horizon
developments in actual automobile engineering practice. I'll certainly
defend anyone's right to buy and drive an SUV, but they ARE the lowest tech
vehicles on the road -- and at a time that can only be characterized as a
golden age of automotive engineering and design . . .
Greg Burch <GBurch1@aol.com>----<gburch@lockeliddell.com>
Attorney ::: Vice President, Extropy Institute ::: Wilderness Guide
http://users.aol.com/gburch1 -or- http://members.aol.com/gburch1
"Civilization is protest against nature;
progress requires us to take control of evolution."
-- Thomas Huxley
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